天然气门站泄漏扩散模拟研究

The Simulation Research on the Leakage and Diffusion of Natural Gas Gate Station

城市天然气门站安全、稳定、高效的运行有利于天然气的配送。一旦门站发生事故,则可能造成人员伤亡、经济损失和严重的社会负面影响。结合相关的经验公式,建立了适用于城市天然气门站燃气泄漏的带压降模型,又在此基础上运用FLUENT建立带压降泄漏下的扩散模型,用于门站天然气泄漏扩散的特点和影响范围分析。并且运用该模型对某城市天然气门站进行实例应用,其结果对提高城市天然气门站的安全性有着指导作用。

It is good for the distribution of gas that the natural gas gate station is in safe,stable and efficient operation.Once an accident occurs,it may cause casualties,economic losses and extremely negative social effects. Combined with the experience formula,a model with a pressure drop for gas leakage of natural gas gate station has been built. On the basis of this model,the diffusion model with pressure leaking is established by FLUENT to analyze the characteristics and the influence scope of the leakage and diffusion in natural gas gate station. As a result,it is applied in one city natural gas gate station and it proves to be directive to improve the safety of the city natural gas gate station.